Unindent blocks for link and markdown style checker

.github/workflows/check_links.yaml

@@ -1,3 +1,4 @@
+# Check that all links are valid, i.e. not broken
 name: Check links
 
 # Check links on the 21st day of the month.
@@ -33,6 +34,14 @@ jobs:
       - name: Internal links must checked, do not allow '400' in the 'aliveStatusCodes' of mlc_config.json
         run: if [[ $(grep --regexp "[^0-9]400[^0-9]" mlc_config.json | wc --lines) == "1" ]]; then echo "FOUND"; exit 42; fi
 
+
+      # For an indented block, a link to a broken image is ignored, as the link checker assumes it to be code.
+      # In our case, it is not: for us, it is usually an admonition (i.e. a 'question' or 'info' block)
+      # Here all indented text is unindented
+      # https://github.com/UPPMAX/UPPMAX-documentation/issues/114
+      - name: unindent text
+        run: ./scripts/unindent_text.sh
+
       - uses: gaurav-nelson/github-action-markdown-link-check@v1
         with:
           config-file: 'mlc_config.json'